A simple way to aim rail-first shots is with the mirroring method. Here, I give an extensive breakdown of this simple, yet effective method.
You’ll learn key factors that are essential for consistently pulling off these shots. A must if you want to take your game to that next level.

Also; please check out my bonus,
“rail-first” video, linked below:

Off angle rail-first shots made easy
   • Off angle rail-first shots made easy  

Thank you and please reach out with any questions you may have, I’m happy to help.